We're seeing some super low fares to Europe on Delta, Air France, and KLM from United hubs like Chicago, Houston, San Francisco, Washington DC, and Denver.
Travel is valid throughout the year with some scattered dates for peak summer.
These fares could vanish at any time, so if something should catch your eye, better book quickly.
San Francisco to Luxembourg $453 round-trip
San Francisco to Brussels $431 round-trip
Washington DC to Brussels $431 round-trip
Chicago to Geneva $487 round-trip
Washington DC to Zurich $433 round-trip
Houston to Geneva $472 round-trip
Houston to Brussels $431 round-trip
Denver to Munich $482 round-trip
For a complete look at what's available, visit our fare listings for Brussels, Zurich, Geneva, Frankfurt, Munich, and Luxembourg.